Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Comparisons of the three-dimensional forces in groups A1, A3, and A5. A, Forces in the buccolingual direction. B, Forces in the mesiodistal direction. C, Forces in the vertical direction.
Group A1, underwent 0.25-mm retraction; Group A3, underwent 0.25-mm retraction and 0.25-mm intrusion; Group A5, underwent 0.25-mm retraction and 0.5-mm intrusion.
*p < 0.05.
